Chromoku

Chromoku is sudoku reimagined. Instead of numbers, you place colours. Same logic — fill every row, column and 3×3 box with each colour exactly once — but removing the numbers changes everything.

Numbers carry baggage. Colours don't. Chromoku is pure pattern recognition — calm, meditative, and genuinely satisfying.

Six handcrafted palettes — Garden, Pastel, Forest, Dusk, Clay and Ice
Build your own custom palette
Three difficulty levels
Notes mode for harder puzzles
Pentatonic sound design — each colour has its own note
Save your completed board as an image

"It feels like painting." — a real player, aged 16, playing for the first time.